package com.zq.qingzhu.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 正则工具类
 */
public class PatternUtil {

	/**
	 * 匹配邮箱正则
	 */
	private static final Pattern VALID_EMAIL_ADDRESS_REGEX =
			Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);

	/**
	 * 验证只包含中英文和数字的字符串
	 *
	 * @param keyword
	 * @return
	 */
	public static Boolean validKeyword(String keyword) {
		String regex = "^[a-zA-Z0-9\u4E00-\u9FA5]+$";
		Pattern pattern = Pattern.compile(regex);
		Matcher match = pattern.matcher(keyword);
		return match.matches();
	}


	/**
	 * 判断是否是邮箱
	 *
	 * @param emailStr
	 * @return
	 */
	public static boolean isEmail(String emailStr) {
		Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(emailStr);
		return matcher.find();
	}

	/**
	 * 判断是否是网址
	 *
	 * @param urlString
	 * @return
	 */
	public static boolean isURL(String urlString) {
		String regex = "^([hH][tT]{2}[pP]:/*|[hH][tT]{2}[pP][sS]:/*|[fF][tT][pP]:/*)(([A-Za-z0-9-~]+).)+([A-Za-z0-9-~\\/])+(\\?{0,1}(([A-Za-z0-9-~]+\\={0,1})([A-Za-z0-9-~]*)\\&{0,1})*)$";
		Pattern pattern = Pattern.compile(regex);
		if (pattern.matcher(urlString).matches()) {
			return true;
		} else {
			return false;
		}
	}

}
